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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
LNB comparison tests
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<blockquote data-quote="spiney" data-source="post: 294932" data-attributes="member: 192438"><p>There were no negative comments from me, I was just pointing out the obvious pitfalls, whether it's worth doing at all is a different matter!</p><p></p><p>Because the particualr lnbs tested will be from different manufacturer batches, there's no way of directly comparing them, unless you test a large number, across the batches, to get a result that's statistically significant. That's impractical, and also why magazines like What Satellite etc don't do it either.</p><p></p><p>The unit tested is most probably - but deosn't have to be - in the median range, and some idea of the parameters spread would be useful, as given in manufacturer data sheets. Presumably, higher cost units have better quality control, hence less variability, one reason for the huge price differences in "low noise" types.</p><p></p><p>"Picture quality" is meaningless, if you meant signal quality as a relative value then that's not much better without some idea of what it means, really the BER is needed.</p><p></p><p>I don't want to be a killjoy, but you are making a general recommendation, after testing only a very few samples</p></blockquote><p></p>
[QUOTE="spiney, post: 294932, member: 192438"] There were no negative comments from me, I was just pointing out the obvious pitfalls, whether it's worth doing at all is a different matter! Because the particualr lnbs tested will be from different manufacturer batches, there's no way of directly comparing them, unless you test a large number, across the batches, to get a result that's statistically significant. That's impractical, and also why magazines like What Satellite etc don't do it either. The unit tested is most probably - but deosn't have to be - in the median range, and some idea of the parameters spread would be useful, as given in manufacturer data sheets. Presumably, higher cost units have better quality control, hence less variability, one reason for the huge price differences in "low noise" types. "Picture quality" is meaningless, if you meant signal quality as a relative value then that's not much better without some idea of what it means, really the BER is needed. I don't want to be a killjoy, but you are making a general recommendation, after testing only a very few samples [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
LNB comparison tests
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